You have a server that runs Windows Server 2003 Service Pack 2 (SP2). You need to ensure that a defragmentation of the server’s hard disk drive runs each night. What should you do? （）

• A、Create a scheduled task that runs Dfrg.msc.
• B、Create a scheduled task that runs Defrag.exe.
• C、From Computer Management, run Disk Management.
• D、From Computer Management, run Disk Defragmenter.